This figure shows the notification rate for laboratory confirmed influenza from 2009 to 2014 by 5?year age groups. This figure demonstrates that 2014 was characterised by co-circulation of A(H1N1)pdm09 and influenza A(H3N2) with the proportion of influenza B viruses rising towards the end of the year. This has seen the burden of disease carried across a breadth of age groups.